Lucy Armstrong wrote from Wyandotte, Kansas Territory, to her attorney, Mordecai Bartley, regarding her lawsuit against the U.S. government on behalf of the Munsee Indians. Lucy described a situation in which the survival of the Munsee tribe was threatened by disease and invasion by Missourians. She enclosed with this letter copies of Cornelius Seth's testimony and other documents related to the lawsuit. Armstrong also described 5 agreements made since 1805 by which the Munsee Indians should have received benefits.

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